Channel Anchoring Device For The Construction Industry

ABSTRACT

The present invention relates to a channel anchoring device for construction industry, which comprises a channel rail with a hollow interior and T-type bolts, anchor shafts or steel base plates attached onto the exterior surface of the web of the channel, the channel anchoring device with anchor shafts is suitable to be embedded into the concrete structure, while the channel anchoring device with steel base plates is suitable to be welded onto the steel structure, the T-bolts are inserted into the gap between the return legs of two flanges of the channel. The said channel rail with a hollow interior is an anchoring channel, preferably manufactured from hot-rolled steel or stainless steel material by the process of hot rolling. The head of T-bolt is locked within the return legs of two flanges of the anchor channel. On the inner surface of the return legs of two flanges of the anchor channel, serrations are arranged respectively. On the lower surface of the head of T-bolt, serrations are also arranged; the serrations of T-bolt head connect with the serrations on the return legs of two flanges of the anchor channel in an engaged lock. The present invention prevents the shift of T-bolt along the channel, moreover no interference to reinforcement concrete installation.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a channel anchoring device made of a metal, more particularly, to a channel anchoring device for the construction industry that is manufactured from the material, such as hot rolled steel (or stainless steel), which is suitable to be embedded into a concrete structure or to be attached to a steel structure, to secure other construction elements attached to the structure, and to make the load transferred from the construction elements to the structure.

2. Prior Art

Various channel anchoring devices of conventional type are known that are manufactured by the process of die casting, cold rolling, or hot rolling, which comprise a channel rail having a hollow interior and one or more anchor shafts attached thereto. The anchor shafts attached to the exterior surface of the web of the channel and embedded into the concrete. A T-shape bolt (hereinafter called T-bolt) can be inserted into the gap between the return legs of two flanges of the anchor channel rail, whose head is fixed within the flanges. Since the inner surfaces of both the T-bolt head and the channel wall are smooth, such type of anchoring device cannot effectively prevent a shift of the T-bolt along the channel. Moreover, the channel anchor shafts of above mentioned type are normally larger in size and may sometimes conflict with the reinforced concrete installation, in particular with the outermost layer of steel reinforcement bars.

As known, another common way of attaching other construction elements to a concrete structure is to use an embedded steel part comprising a steel plate with steel re-bars attached to the back. The embedded steel part is cast into the concrete only with the face of the steel plate exposed. The construction element is attached to a set of steel brackets, which are attached in sequence onto the exposed face of the embedded steel part by site welding. Comparatively, the size and weight of the embedded steel part is much larger and heavier than that of the steel channel anchor mentioned above so as to bear the same amount of load. Moreover, the steel re-bars required on the embedded steel part are also more in quantity and longer in length and thus causing much more interference to reinforced concrete installation.

BRIEF SUMMARY OF THE INVENTION

Accordingly, to eliminate all of drawbacks mentioned in [0004] and [0005], the primary objective of the present invention is providing an improved channel anchoring device for the construct industry, which solves the problems that the prior art anchoring device cannot effectively prevent the shift of T-bolt along the channel, and the embedded steel part has larger in size and heavier in weight to cause inconvenience to reinforcement concrete installation.

Briefly, the present invention is a channel anchoring device for the construction industry that comprises a channel rail with a hollow interior and one or more T-bolts, the anchor shaft or steel base plate attached to the exterior surface of the wall of the channel rail, the channel anchoring device with anchor shafts is suitable to be embedded into the concrete structure, while the channel anchoring device with steel base plate is suitable to be welded onto the steel structure, and the T-bolts are inserted into the gap between two return legs of the flanges of the channel rail.

The said channel rail with a hollow interior is an anchor channel, preferably manufactured from hot-rolled steel or stainless steel material by the process of hot rolling.

The said return legs of two flanges of the anchor channel are separated from each other, the width of the gap there between is slightly larger than the diameter of the shank of inserted T-bolt, the head of T-bolt is locked within the return legs of two flanges of the anchor channel.

On the inner surface of the return legs of the flanges of the anchor channel, continuously outspread serrations are arranged respectively.

On the lower surface of the head of T-bolt, continuously outspread serrations are arranged, the serrations of T-bolt head engage onto the serrations on the flanges of two legs of anchor channel.

Compared with the prior product of the channel anchoring device for the construction industry, the anchor channel of the present invention has smaller in size, lighter in weight, and prevents the shift of T-bolt along the channel, so as to cause less or even no interference to reinforcement concrete installation.

The said anchor channel of the present invention is made by the process of hot rolling. The continuously outspread serrations are designed to arrange on the inner surface of the return legs of the flanges of the anchor channel, which engage with the serrations arranged on the lower surface of the T-bolt head. Therefore, this can prevent the shift of T-bolt along the channel no matter in what orientation the device is placed.

The channel anchoring device of the present invention provides much higher shifting resistance than that of the known devices. As a result, the present invention can effectively solve the shifting of T-bolt due to the seismic loading under earthquake condition of greater than Richter scale rating 7.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is the side view of one embodiment of the channel anchoring device for construction industry of the present invention that is manufactured from hot rolled steel (or stainless steel), which is suitable to be cast into a concrete structure.

FIG. 2 is the cross-sectional view of A-A in FIG. 1.

FIG. 3 is the cross-sectional view of B-B in FIG. 1 in combination with a T-bolt in the channel of the anchoring device.

FIG. 4 is the structural view of the T-bolt of the channel anchoring device in FIG. 1.

FIG. 5 is the top view of the T-bolt showed in FIG. 4.

FIG. 6 is the detailed structural view of the T-bolt with serrations in FIG. 4.

FIG. 7 is the side view of another embodiment of the channel anchoring device for the construction industry of the present invention that is manufactured from hot rolled steel (or stainless steel), which is suitable to be welded onto a steel structure through the basal plate.

FIG. 8 is the cross-sectional view of C-C in FIG. 7.

DETAILED DESCRIPTION OF THE PREFERRED

Referring now to FIG. 1 to FIG. 3, one embodiment of a channel anchoring device for construction industry in accordance with this invention is manufactured from hot rolled steel or stainless steel material, which is applicable to be cast into concrete structure. With the function as a coupling device, this channel anchoring device can attach with any construction elements and transfer the load from the attached element to the concrete.

Referring now to FIG. 4 to FIG. 6, the channel anchoring device of this invention comprises an anchor channel 1 that is made from hot rolled C-shaped steel (or stainless steel) and a T-bolt 5, a plurality of ordinary steel (or stainless steel) anchor shafts 2 installed onto the anchor channel 1, which are cast into the concrete structure. The T-bolts 5 are inserted to install within the anchor channel 1.

The anchor channel 1 is a channel rail with a hollow interior, which is made from hot rolled steel or stainless steel material by the process of hot-rolling. The return legs 13 of two flanges of the anchor channel 1 are separated from each other, and the T-bolt 5 is inserted into the gap 11 between the return legs 13 of two flanges of the anchor channel 1, the width of the said gap 11 is slightly larger than the diameter of the shank of inserted T-bolt 5, the head of T-bolt 5 is locked within the return legs 13 of two flanges of the anchor channel 1.

Referring now to FIG. 1 and FIG. 3, on the inner surface of the return legs 13 of two flanges of the anchor channel 1, continuously outspread serrations 14 are arranged respectively, which form the toothed surfaces 15. Referring to FIG. 5 and FIG. 6, on the lower surface of the head of T-bolt 5, continuously outspread serrations 52 are also arranged; the serrations 52 of T-bolt 5 head enjoy the same size and tooth space with the serrations 14 on the flanges 13 of two legs of the anchor channel 1. The serrations 52 of T-bolt 5 head connect with the serrations 14 on the flanges 13 of two legs of the anchor channel 1 in the engaged lock.

Referring to FIG. 5, the head of T-bolt 5 is a bolt head 51 in the form of parallelogram, the serrations 52 are respectively arranged on the lower surface of two shorter side portions of the bolt head 51. The head 51 of T-bolt 5 is designed as parallelogram, so that the T-bolt 5 can be turned easily after it has been inserted into the gap 11 of the anchor channel 1, thus the serrations 52 on the head 51 of T-bolt 5 can be engaged to lock onto the serrations 14 of the return legs 13 of two flanges of the anchor channel 1. When the T-bolt 5 is locked onto the anchor channel 1, nuts can be used to screw it down after another element has been attached with the bolt (Not shown). Therefore, the T-bolt 5 is completely locked by both the serrations 14 on the anchor channel 1 and the serrations 52 on the bolt head 51, which will not be slid towards any directions under the permitted working load.

Referring to FIG. 1 to FIG. 3 again, the anchor shaft 2 attached to the anchor channel 1 having smooth shaft shank 22, shaft base 21 and shaft head 23, the shaft head 23 is a protruded one in the shape of disc, whose area is larger than the area of shaft base 21.

The base 21 of anchor shaft 2 is welded to install on the web 12 of the anchor channel 1, namely the base 21 is installed onto the wall 12 of the anchor channel 1 by means of electric are fusion welding 4, then the rim of shaft base 21 is attached to the wall 12 of the anchor channel 1 by means of fillet welding 3, namely the fillet welding 3 is performed around the rim of shaft base 21. Thus, the anchor shaft 2 can be installed on the anchor channel 1 firmly through said twice welding, to secure the safety sufficiently.

Referring to FIG. 7 and FIG. 8, another embodiment of a channel anchoring device for construction industry in accordance with this invention is manufactured from hot rolled steel or stainless steel material, which is applicable to be welded onto the steel structure through the base plate. With the function as a coupling device, this channel anchoring device can attach with any construction elements and transfer the load from the attached element to the steel structure.

The channel anchoring device of this invention comprises an anchor channel 1 that made from hot rolled C-shaped steel (or stainless steel) and a T-bolt 5, a plurality of steel base plates 6 are installed on the anchor channel 1, which are welded to attach onto the steel structure through the steel base plates 6. The T-bolts 5 are inserted to install within the anchor channel 1.

The base plates 6 attached on the anchor channel 1 are in the form of square or rectangle. The base plates 6 can be made from ordinary steel or stainless steel. The base plates 6 can be attached onto the anchor channel 1 with hot rivets 61.

Referring now to FIG. 7 and FIG. 8, on the inner surface of the return legs 13 of two flanges of the anchor channel 1, continuously outspread serrations 14 are arranged respectively, which form the toothed surfaces 15. Referring to FIG. 5 and FIG. 6, on the lower surface of the head 51 of T-bolt 5, continuously outspread serrations 52 are also arranged; the serrations 52 of the head 51 of T-bolt 5 enjoy the same size and tooth space with the serrations 14 on the return legs 13 of two flanges of the anchor channel 1. The T-bolts 5 are inserted into the gap 11 between the return legs 13 of two flanges of the anchor channel 1. The serrations 52 of bolt head 51 connect with the serrations 14 on the return legs 13 of two flanges of the anchor channel 1 in the engaged lock.

The anchor channel 1 is welded onto the steel structure through the steel base plate 6, moreover the serrations 14 arranged on the return legs 13 of two flanges are engaged to lock with the serrations 52 arranged on the bolt head 51 of T-bolts 5 that are inserted into the anchor channel 1. Similarly, the slide of T-bolt along the anchor channel can be effectively prevented.

Accordingly, for the common skilled technician in the art, it is to be understood that the said embodiments have been described only for the present invention and not for purposes of limitation on the present invention. Within the actual spirit and scope of the invention, any variation for the embodiment in the form and details that will be subject to the range of the invention claims. Therefore, the invention is limited only by the appended claims. 

1. A channel anchoring device for construction industry, which comprises a channel rail with a hollow interior and a T-bolt, anchor shafts or steel base plates attached onto the exterior surface of the web of the channel rail, the channel anchoring device with anchor shafts is suitable to be embedded into a concrete structure, while the channel anchoring device with steel base plates is suitable to be welded onto a steel structure, the T-bolts are inserted into a gap between the return legs of two flanges of the channel rail; characterized in that the said channel rail with a hollow interior is an anchor channel, preferably manufactured from hot-rolled steel or steel material by the process of hot rolling; the said flanges of two legs of anchor channel are separated from each other, the width of the gap is slightly larger than the diameter of the shank of inserted T-bolt, and the head of T-bolt is locked within the flanges of two legs of anchor channel; on the inner surface of the said flanges of two legs of anchor channel, continuously outspread serrations are arranged respectively; on the lower surface of the said head of T-bolt, continuously outspread serrations are arranged; the serrations of T-bolt head connect with the serrations on the flanges of two legs of anchor channel in an engaged lock.
 2. The channel anchoring device for construction industry according to claim 1, characterized that the said anchor shaft 2 attached to the anchor channel has a smooth shaft shank, a shaft base and a shaft head, the shaft head is a protruded one in the shape of disc, whose area is larger than that of the shaft base.
 3. The channel anchoring device for construction industry according to claim 1, characterized that the said base of anchor shaft is welded to install onto the web of anchor channel, namely the base is installed onto the exterior face of the web of anchor channel by means of electric are fusion welding firstly, then the rim of base is attached to the wall of anchor channel by means of fillet welding.
 4. The channel anchoring device for construction industry according to claim 1, characterized that the said base plates attached to the anchor channel are in the form of square or rectangle.
 5. The channel anchoring device for construction industry according to claim 1, characterized that the said base plates can be attached to the anchor channel with hot rivets.
 6. The channel anchoring device for construction industry according to claim 1, characterized that the said head of T-bolt is a bolt head in the form of parallelogram, the serrations are respectively arranged on the lower surface of two shorter side portions of the bolt head.
 7. The channel anchoring device for construction industry according to claim 1, characterized that the serrations of T-bolt head enjoy the same size and tooth space with the serrations on the return legs of two flanges of the anchor channel. 